PHILADELPHIA (WPVI) -- Shoshana shows us an exercise for your core. Reverse lunge with inner thigh squeeze - Today's Tip Row, curl, press- Today's Tip Standing crunch - Today's Tip Curtsy lunge - Today's Tip Compund movement workout - Today's Tip Crunch & clap - Today's Tip Glute bridge, chest press - Today's Tip Work your shoulders and triceps - Today's Tip Work your upper body and your core - Today's Tip.